Bed construction



Apr. 10, 1923. 1 1,451,181

' 1 LA FORREST D. SCOTT BED CONS TRUQTION Filed July' 5, 1922 2 sheets-sheet J INVENTOR Za/Zrres/ D. .S'co/f ATTQRNEYS Ap 10, 1315!,1'81 LA FORREST D. SCOTT BED CONSTRUCTION Filed July 5, 1922 2 sheets-sheet 2 0 wfi Y %%m NF 0 mmw .m W Y B... Q

" frame.

Patented Apr. if}, 1923.

STATES LA FORREST 1). SCOTT, OF LOS ANGELES, CALIFORNIA.

BED CONSTRUCTION.

Application filed July 5,

T all whom it may COTLCG FIt Be it known that 1, LA FORREST D. Soon, a citizen of the United States, and resident of Los Angeles, in the county of Los Angeles and State of California, have invented new and useful improvements in a Bed (lonstruction, of which the following is a specification.

This invention relates to a bed and is especially useful in a folding bed of the portable type.

A well known type of bed comprises a carriage mounted upon casters. The carriage is at the head end of the bed and has the usual head piece fixed thereto. livotally mounted on the carriage is a bed frame. The frame is pivoted adjacent the head end thereof, and the construction is such that the bed frame may be raised to a vertical position. in this folded condition, the bed may be rolled into a closet or other recess. The carriage, when the frame is unfolded or in sleeping position may be tilted so that the head can be collapsed upon the bed is common to attach one or more tension springs between the carriage and frame to counterbalance the frame in folding. Unless the carriage has several points of supports well s aced in the direction of the length of the bed, a slight pressure at the top of the head, when the bed is open, may tilt the carriage to a position such that the counterbalance springs will close the head upon the frame in the manner of a jack knife.

This invention relates to a bed having means for automatically looking the carriage and bed frame against folding when pressure is applied to the head tending to tilt it, but is not placed in operation when the frame is lifted to fold the bed.

These obiects together with other objects and corresponding accomplishments are obtained by means of the embodiment of my invention illustrated in the accompanving drawings, in which:

Fig. l is a perspective view of a fragment of the bed showing the head end, carriage, and the frame when in sleeping position; Fig. 2 is an elevation of a fragment of the head end, partly in elevation showing the locking means in operating position; Fig. 3 is a view similar to Fig. 2 showing the locking means in normal position; Fig. f is a side elevation of the structure shown in Serial No. 572,857.

Fig. 3; and Fig. 5 is a section-as seen on the line 5-5 of Fig. 2.

Referring more particularly to the drawings, the carriage is indicated by 6. It is provided with three fixed casters 7 of the usual form and a loose caster later described. iiciounted upon the carriageare posts 8 and 9. At the sides of the carriage are brackets 10 having openings in which are journalled trunnions 11 extending from the sides of the bed frame 12. Uonnecting the frame 12 and the carriage are counterbalance springs 13 to assist in lifting the frame to the folded position. buppose that the bed is open and an attempt is made to swing the bed around the room by pressure upon the top'of the head. There will be a tendency to tilt the head piece and carriage over onto the frame and if sufficient pressure is exerted the bed will collapse. iviy invention resides in the means for preventing collapse of the bed un der certain conditions.

The post 9 ishollow and slidably mount ed therein is a plunger 14. Secured to the bottom of the plunger 1& is a caster 15 hav ing a shoulder to engage the carriage and support the latter at this pointas shown in Figs. 3 and 4. .A guide ring 16 is mounted upon the plunger, and a guide ring 17 is mounted upon the inner bore of the posts. These guide rings assist in keeping the plunger in line in movement. The post is provided with a longitudinal slot 18 adjacent the top of the plunger. Extending through the slot and fixed to the plunger is a in in the form of a screw indicated by 19. otatably mounted upon the post is a sleeve 20 having a spiral slot 21 through which extends the pin 19. Collars 22 and 23 hold the sleeve 20 in position. Fixed to the sleeve 20 is a locking arm 24. The positions of the slot 521 and arm 24 is such that when the plunger is fully within the post in the posi tion shown in Figs. 3 and 4, pin 19 will have moved the sleeve so that the locking arm is parallel to the carriage bracket, out of the way of the frame, and said frame may be folded into vertical position. Suppose the ressure is exerted upon the upper end of the bed. This tends to tilt the carriage about the front casters as a fulcrum and to raise the caster 15 from the floor. Tilting of the carriage will permit the plunger 14: to slip downwardly into the position shown in Figs. 1 and 2. The pin 19 riding in the slot 21 causes the sleeve 20 to turn and swing the arm as under the cross bar of the frame 12. This looks the carria e a ainst colla s-' ing.

l Vhat I claim is: 1. In a foldable structure having a carriage and a member pivotally secured thereto, a support for said carriage adapted to rest on the floor, said support being extensibly mounted on said carriage so as to be projected therefrom upon said carriage being 2. In a folding bed having a carriage and a bed frame pivotally secured thereto, a support for said carriage adapted to rest on the floor, said support being extensibly a mounted on said carriage so as to be projected. therefrom upon being lifted and an arm actuated by projection of said support to be moved under said frame and lock said carriage against collapse.

3. in a folding bed having a carriage and a bed frame pivotally secured thereto, a post on said carriage, a caster loosely mounted on said post so as to be projected therefrom upon lifting of said carriage, an arm movably mounted on said post for engaging said frame to lock said carriage against collapse, and means connecting said caster and said arm so as to move the latter and to lock it upon projection of said caster.

a. In a folding bed having a carriage and a bed frame pivotally secured thereto, a hollow post on said carriage, a plunger having a caster slidably mounted in said post so as to be projected therefrom upon lifting of said carriage, an arm movably mounted on said post for engaging said frame to lock said carriage against collapse, and means connecting said plunger and said arm for moving the latter into locking position upon lifting said carriage.

5. in a folding bed having a carriage and bed frame pivotally secured thereto, a post on said carriage, a caster slidably mounted on said post so as to be projected therefrom upon lifting of said carriage, a sleeve rotat ably mounted on said post, said sleeve having arm disposed to be moved into engagement With said bed frame, and means connecting said caster and said sleeve to move the latter into locking position upon lifting of said carriage and thereby prevent collapse of said bed.

6. in a folding bed having a carriage and bed frame pivot-ally secured thereto, a hollow post on said carriage, a plunger having a caster slidably mounted in said post so as to be projected therefrom upon lifting of said carriage, a sleeve rotatably mounted upon said post, said sleeve having an arm to en said frame and lock said carriage against collapse, and means connecting said plunger and said sleeve so as to rotate the latter upon movement of said plunger and position said arm in looking position upon lifting said carriage 7. in a :loldlng bed having a carriage and l k votally secured thereto, a hollow post on said carriage, a plunger having a caster slidably mounted in said post so as to be projected therefrom upon lifting of said carria e, a sleeve rotatably mounted upon said post, said sleeve having a spiral slot and an arm for engaging said frame, a pin secured to said plunger and disposed in said slot so that upon movement of said plunger said sleeve and arm Will be rotated into locking position.

ln witness that I claim the foregoing l have hereunto subscribed my name this 28th day of June, 1922.

LA FORREST D. SCOTT. 

